Magnzine spanner



June 23,1925. 5 1,543,175

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is orwy lsatented J une. 2 3, 1925.

UNITI-:n STATES PATENT oFFiciaz.

WILFRID JUSTIN KCCARTHY, F KENILWORTH, ENGLAND.v

MAGAZINE SPAN NER..

Original application iiled August 15, 1923, Serial No. 657,548, Patent No. 1,503,692, dated August 5, 1924. Dividedand this applic'ation'led Mayr21, 1924. Serial No. 714,926.

To all wwm. t may concern.'

Be it known that WILFnID JUSTIN MCCARTHY, a subject of the King of Great Britain, residing at Park Hill, Kenilworth, in the county of Warwick, England, has invented a new and useful Improvement in or Connected with Magazine Spanner-s, and he does hereby declare the followingto be a full, clear, and exact description of the same.

This invention has reference to improvements inl or connected with magazine spanners more particularly of the kind wherein the unscrewed nuts are stored within the bore of a tube which forms the body of the Spanner, said nuts being maintained Within the bore of the tube after unscrewing by means of spring controlled members which only permit the subsequent expression of the nuts one at a time under say the influence of a spring controlled piston located within the bore. The present invention has for its object the provision of an improved nut retention means for use type.

The invention consists lof an improved with -spanners of this magazine Spanner of the kind herein referred to, characterized by the provision of a plurality of nut retention members adapted to normally project within ythe bore of the spanner under the influence of an annular spring surrounding and pressing on the outer extremities ofthe said members.

The invention will now be described with particular reference to the accompanying sheet of drawings, wherein:-

Fig. 1 is a .part sectional elevation of a magazine Spanner having nut retention means constructed` in accordance with my invention.

Fig.- 2 is a front view of the open or acting end of the Spanner showing a nut retained within the magazine.

Fig. 3 is a part sectional elevation of the open or acting end of the Spanner with a nut stored therein.

Fig. 4 is a part sectional end elevation showing a nut gripped by the nut retention members, and i Fig. 5 is a side elevation of the open end of the spanner the cover cap being indicated in dotted lines more clearly to show the clisposition of the annular spring.

. The form of magazine spanner shown in the drawings and with which the invention is preferably embodied comprises a cylindrical tube 6 having an hexagonal bore 7 of lsuch dimensions as conform to the size of the nuts 8 with which the Spanner is to be employed. The tube 6 forms the magazine for storing the nuts 8 after unscrewing the said nuts being retained within the tube by means of nut retention members hereinafter more fully described and which form the essential feature of the present invention.- The said nut retention members are located near the open or acting nd of the tube 6 the other end of the sai j tube being closed by a plug 9. A coil spring 10 and piston 1l are disposed within the bore 7 of lthe tube and serve to eject the nuts- 8 one at a time as permltted by the nut retentionl members the coil springv being positioned Within the tube by means Vof projections 12 and 13 on said plug 9 and piston 11 respectively. Meanssuch asa tommy-bar passing through diametrical holes in the tube 6 or a brace are provided for rotating the tube.

The nut retention means comprises a plurality of shouldered ball nosed plungers 14 disposed Within stepped holes 15 formed in -the walls of the tube 6 and spaced at equal distances apart the ball noses 16 of the said plungers 14 normally projecting within the bore of the tube under the iniuence of an annular spring 17 which abuts their outer extremities. within a groove 18 formed in the outer periphery of the tube and bearing against the outer ends 0f the plungers 14 presses them inwards within the bore of the tube the con-V tact of the shoulders of the said plungers 14 with the steps of the holes 15 preventing the plungers from being pressed completely within the tube. As shown in the drawings the spring 17 is formed from a length yof cy'- lindrical wire and is split and overlapped for part of its length t0 admit of the necessary expansion and contraction required in the operation of the Spanner. The spring 17 and groove 18 are covered by an end collar 19 which abuts a flange 20 formed on aid spring 17 is disposed` the open end of the tube, said collar 19 being recessed to permit of the necessary expansion and contraction of the 'spring 17. The closed or non-acting end of the tube 6 has therein diametrically opposed holes 21 to receive the end of acranke rod'22 which is provided with a handle 23 to facilitate its. rotation for operating the Spanner. They ready rod 22 is as Shown in Figure l formed `with a flat 24 which is adapted to abut against the outwardly presented flat-fend of the plug 9 and Serves to prevent tle rotation of the rod Within the holes 21the shoulder 25. `forming a limiting stop against the plug 9 for determining the fully inserted position of the cranked rod 21. Alternatively the Spanner may be rotated by the hand without the employment of a cranked handlev or by a tommy-bar or equivalent means.

The operation of the Spanner is as fol lows: The mouth of the tube 5 is forced over the nut it is required to unscrew thereby forcing the ball ends or noses i6 of the plungers llsout of the bore of the tube 6 and expanding the annular spring 17 the tendency of the said spring to retain its normal position resulting in the ends or the noses of the plungers being firmly pressed against the nut to grip the same during the unscrewing operation. The nut is gripped until it is completely unscrewed when the end of the bolt or Stud from which it has been unscrewed serves to force the nut Within the magazine of the Spanner beyond the ends or noses of the plungers as seen in say Figure 3, when the ends or noses of the plunger are again pressed into the borerof the spanner and serve to retain the nut or nuts Within the Spanner and are in position to engage the next nut to be/removed.

-As each nut is received Within the bore of the Spanner the piston 11 is pressed inwardly against the resistance of the coil spring l0 and this spring and piston serve as the ejecting means for t-he contained nuts when it is desired to Screw them onto their bolt or Stud. A reverse operation of the Spanner when positioned relative to a bolt or stud effects the transfer of the nut from the Spanner tothe bolt or Stud. y u

S-panners of this character are particularly useful for removing the nuts from the Wheel of a motor car and retaining them during the replacement While a repair or replacement is being effected.

l. A magazine Spanner comprising in combination a tube having one end thereof formed as the acting end of a Spanner, ball plungers disposed Within the Walls of said tube and adapted to project within the bore thereof, an annular spring Surrounding said plungers and abutting the outer ends thereof, said Springv normally maintaining the acting surface of said plungers Within the bore of the tubev and means for positioning said Spring relative to said plungers.

9a A `magazine Spanner comprising in combination a tube having one end thereof formed as the acting end yof a Spanner, ball nosed plungers disposed Within the Walls of said tube and adapted to project Within the bore thereof, means for positioning said plungers Within the Walls of Said tube, an annular spring surrounding said plungers and abutting the outer ends thereof, Said spring normally maintaining the noses of said plungers Within the bore of the tube,

means for positioning said spring relative to'4 said plungers andmeans for effecting the rotation of the Spanner.

3. A magazine Spanner comprising in combination a tube having one end there-l of formed as the acting end of a Spanner, stepped holes formed in the walls of said tube and near the acting end thereof, shoul'- dered ball nosed plungers disposed Within said holes so that the noses thereof project Within the bore of the tube, `an `annular spring located Within a recess formed in said tube said springabutting the outer extremities of the plungers and normally maintaining the ball noses thereof within the bore of said tube, a recessed cap mounted on the acting end of thetube and posi- 'tioning the spring relativeto the plungers and means for eifecting rotation ofthe v Spanner.

Intestimony whereof, I have Signedmy name to thisv specification.

WILFRID JUSTIN MCCARTHY. 

